Iron binding capacity

Iron binding capacity measures the amount of iron that can be carried by transferrin, a protein in blood that transports iron throughout the body. This test is part of iron metabolism assessment and helps evaluate iron stores and absorption. Elevated iron binding capacity may suggest iron deficiency, while low levels can indicate iron overload or chronic disease. Understanding iron binding capacity alongside other iron markers (ferritin, serum iron) provides a complete picture of iron status, which is essential for energy production, oxygen transport, and immune function.